After testing this PR https://github.com/jenkinsci/multibranch-action-triggers-plugin/pull/10 I changed the project name for the "Pipeline Delete Event" in the top level github org project.  After doing so I discovered that the sub projects created by the github org did not update after the change.  

Workaround:

Shutdown jenkins and cd to /var/lib/jenkins/jobs on the server and run this script...

for line in $(find . -name "config.xml" -exec grep -l FlowcastPipelineDelete {} +); do sed -i 's/FlowcastPipelineDelete/flowcast-pipeline-delete/g' $line; done

Then start jenkins back up.